Granted Patent
Utility
US 6,271,214 · App. 09/295,648
Process for the preparation of immunomodulatory polysaccharides from aloe
Inventors:
Zhihua Qiu, Belaid Mahiou
Patented Case
View Patent ↗
Granted: Aug 7, 2001
Filed: Apr 21, 1999
Inventors
Zhihua Qiu
Belaid Mahiou
Assignee (at issue)
Univera Pharmaceuticals, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.